Texas Instruments MSP430x11x1 warranty Input/output schematic, Gnd

MSP430x11x1

MIXED SIGNAL MICROCONTROLLER

SLAS241C ± SEPTEMBER 1999 ± REVISED JUNE 2000

APPLICATION INFORMATION

input/output schematic

Port P1, P1.0 to P1.3, input/output with Schmitt-trigger

P1SEL.x

P1DIR.x

Direction Control From Module

P1OUT.x

Module X OUT

P1IN.x

		VCC
0		(See Note 27)
1
0		(See Note 28)
	Pad Logic	P1.0 ± P1.3
1
		(See Note 28)
		(See Note 27)

Module X IN

EN

D

GND

P1IRQ.x

P1IE.x	EN	Interrupt
		Edge
	Q
P1IFG.x
	Set	Select

Interrupt

FlagP1IES.x

P1SEL.x

NOTE: x = Bit/identifier, 0 to 3 for port P1

		Direction
PnSel.x	PnDIR.x	control from	PnOUT.x	Module X OUT	PnIN.x	Module X IN	PnIE.x	PnIFG.x	PnIES.x
		module
P1Sel.0	P1DIR.0	P1DIR.0	P1OUT.0	VSS	P1IN.0	TACLK²	P1IE.0	P1IFG.0	P1IES.0
P1Sel.1	P1DIR.1	P1DIR.1	P1OUT.1	Out0 signal²	P1IN.1	CCI0A²	P1IE.1	P1IFG.1	P1IES.1
P1Sel.2	P1DIR.2	P1DIR.2	P1OUT.2	Out1 signal²	P1IN.2	CCI1A²	P1IE.2	P1IFG.2	P1IES.2
P1Sel.3	P1DIR.3	P1DIR.3	P1OUT.3	Out2 signal²	P1IN.3	CCI2A²	P1IE.3	P1IFG.3	P1IES.3

²Signal from or to Timer_A

NOTES: 27. Optional selection of pullup or pulldown resistors with ROM (masked) versions.

28. Fuses for optional pullup and pulldown resistors can only be programmed at the factory (ROM versions only).

POST OFFICE BOX 655303 •DALLAS, TEXAS 75265 37